>3difA (A:) observed residues (from ATOM records)
divitqspkfmstsvgdrvsitckasqdvstavawfqqkpgqspklliysasyrytgvpd
rftgsgsgtdftftissvqaedlavyycqqhystpwtfgggtkleikradaaptvsifpp
sseqltsggasvvcflnnfypkdinvkwkidgserqngvlnswtdqdskdstysmsstlt
ltkdeyerhnsytceathktstspivksfnrne